[DaBlue1]

Originally Posted by Alex

.... Would be interested if people have found what pirelli says directly about these tires.

Got this email reply from Pirelli in May 2012


Hello

Please note one should always inflate tires to the correct tire pressure as indicated in the owner’s manual. However Pirelli North America has found the air pressure suggestions listed in our brochures will improve mileage and customer satisfaction. Check cold inflation pressure frequently. Correct tire pressure is crucial for safe handling. Over inflation may impair ride comfort and reduce the contact patch between the tire and the driving surface of the tires. Insufficient air pressure will result in poor handling and cause a tendency for the motorcycle to "wander". In addition, improper and insufficient tire pressure will cause accelerated tire wear, increased fuel consumption, less control and the possibilities for tire failure due to an overloaded/under inflated operating situation.

Hyper Sport, Supersport, Extended Mileage Sport radial tires, Bias-ply Sport Touring tires
Front
Solo / Riding with 2 / Riding 2 with extra load
32-34 / 34-36 / 36-42

Rear
Solo / Riding with 2 / Riding 2 with extra load
36-38 / 38-40 / 40-42

In closing Pirelli finds that running higher pressures (up to the max as stated on the sidewall) will increase the life of the tire with no adverse effects. Thanks for the question and have a great day.

NA Pirelli Moto Consumer Affairs
800 747-3554
www.us.pirellimoto.com